Mine shaft lifting and transporting system

Abstract

The utility model discloses a mine shaft lifting transportation system, which comprises a cage, a steel cable, a lifting system, a counter weight and a shaft guide, the shaft guide is arranged in a shaft along the depth direction of the shaft, the cage is arranged in the shaft and is in sliding fit with the shaft guide, the counter weight is arranged in the shaft and is positioned on one side of the cage, and the steel cable is arranged on the lifting system. The lifting system is arranged in a lifting machine room at the mouth of the vertical shaft, one end of the steel cable is fixedly connected with the cage, and the other end of the steel cable is fixedly connected with the balance weight after being in transmission connection with the lifting system. The bottom plate capable of swinging is arranged to be matched with the friction plates, when the cage is overwound and enters the position between the two friction plates, the friction braking buffering effect can be provided, the supporting effect is provided through the transverse hydraulic cylinder, and enough clamping force is provided; and after the pressure in the transverse hydraulic cylinder and the vertical hydraulic cylinder is released, the cage can be quickly reset.

Description

Technical Field

[0001] The utility model relates to the technical field of mine transportation devices, in particular to a mine shaft hoisting and transportation system. Background Art

[0002] Shaft hoisting is one of the methods for transporting ore in mines, and has the advantages of fast transportation speed, large load capacity and long transportation distance. During shaft hoisting, buffer devices are usually required to be set at the top and bottom of the tank channel to prevent overwinding and improve transportation safety. The wedge-shaped tank channel in the prior art is a friction buffer channel with gradually narrowing at both ends of the tank channel. The tank cage plays a buffering role after entering the wedge-shaped tank channel, but there is a large friction between the tank cage and the wedge-shaped tank channel after entering the wedge-shaped tank channel. The tank cage cannot be quickly separated from the wedge-shaped tank channel and cannot be quickly put back into transportation. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to provide a mine shaft hoisting and transportation system which can provide a buffering effect for the cage and facilitate the cage to be quickly reset and put into transportation.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a mine shaft hoisting and transportation system, comprising a cage, a steel cable, a hoisting system, a counterweight and a tankway, wherein the tankway is arranged in the shaft along the depth direction of the shaft, the cage is arranged in the shaft and slidably fitted on the tankway, the counterweight is arranged in the shaft and located on one side of the cage, the hoisting system is arranged in a hoisting room at the shaft opening, one end of the steel cable is fixedly connected to the cage, the other end of the steel cable is transmission-connected to the hoisting system and then fixedly connected to the counterweight, a hydraulic over-winding protection mechanism is fixedly installed at a position opposite to the cage in the shaft opening, and a hydraulic over-winding protection mechanism is also fixedly installed at a position opposite to the cage in the shaft bottom.

[0005] A mine shaft hoisting and transportation system, wherein a supporting steel frame is fixedly installed in the shaft wall, and the tankway is fixedly connected to the shaft wall through the supporting steel frame; auxiliary slideways are arranged on both sides of the counterweight, and the auxiliary slideways are fixedly connected to the supporting steel frame, and the counterweight slideway is slidably engaged with the auxiliary slideways. By providing the auxiliary slideway, the stability of the counterweight during operation can be ensured.

[0006] A mine shaft hoisting and transportation system, in which a ladder room is arranged in the space on the other side of the cage in the shaft, a pedestrian steel ladder is fixedly installed in the ladder room, and the pedestrian steel ladder is fixedly connected to the shaft wall through a supporting steel frame. By arranging the ladder room and the pedestrian steel ladder, workers can go up and down, and the transportation system can be easily inspected and repaired.

[0007] A mine shaft hoisting and transportation system, the hoisting system includes a drum, a first sheave and a second sheave, the drum is fixedly installed in a hoisting machine room at one end of the shaft opening through a base, a shaft opening support frame is fixedly installed on the shaft opening, the first sheave and the second sheave are respectively installed on the shaft opening support frame, the first sheave is arranged directly above the cage, the second sheave is arranged directly above the counterweight, and a steel cable fixed to the top of the cage passes around the first sheave, the drum and the second sheave in sequence and is fixedly connected to the top of the counterweight.

[0008] A mine shaft hoisting and transportation system, wherein a connecting seat is fixedly connected to the bottom of the shaft, a bottom guide wheel is rotatably connected to the connecting seat, a steel cable is also fixedly connected to the bottom of the cage, and the steel cable connected to the bottom of the cage passes around the bottom guide wheel and is fixedly connected to the bottom of the counterweight.

[0009] A mine shaft hoisting and transportation system is provided. A well bottom water pit is opened on the well bottom of the shaft. A drainage pump is installed in the well bottom water pit. A water level sensor is installed at the opening of the well bottom water pit.

[0010] A mine shaft hoisting and transportation system, the hydraulic overwinding protection mechanism includes an articulated seat, a base plate and a friction plate, the articulated seat is fixedly connected to the shaft wall through a supporting steel frame, one end of the base plate is hinged on the articulated seat, the base plates are arranged at positions on both sides of the cage, the friction plates are fixedly mounted on the side wall surface of the base plate facing the cage, the spacing between the two opposite friction plates gradually decreases from the articulated end to the free end of the base plate; a transverse hydraulic cylinder is arranged on the side of the base plate away from the cage, the piston rod end of the transverse hydraulic cylinder abuts against the side wall surface of the base plate, and the cylinder barrel of the transverse hydraulic cylinder is fixedly connected to the supporting steel frame.

[0011] A mine shaft lifting and transportation system, wherein a vertical hydraulic cylinder is arranged at the end position of the moving direction of the cage, the piston rod end of the vertical hydraulic cylinder faces the cage, the cylinder barrel of the vertical hydraulic cylinder is fixedly connected to the wall of the shaft through a supporting steel frame, the liquid outlet of the transverse hydraulic cylinder is fluidly connected with the liquid inlet of the vertical hydraulic cylinder through a hydraulic pipe, the liquid inlet of the vertical hydraulic cylinder is fluidly connected with a manual pressure relief valve, the other end of the manual pressure relief valve is connected with a liquid storage tank, by arranging the manual pressure relief valve, when the buffering is completed, the manual pressure relief valve is opened to unload the pressure in the vertical hydraulic cylinder and the transverse hydraulic cylinder, so as to realize the rapid release of the cage and enable the cage to be quickly put into transportation again.

[0012] A mine shaft hoisting and transportation system, at the shaft mouth and the shaft bottom: a first stop beam and a second stop beam are sequentially arranged along the moving direction of the cage, and the first stop beam and the second stop beam are both fixedly connected to the shaft wall through a supporting steel frame.

[0013] A mine shaft hoisting and transportation system, wherein both sides of the cage are fixedly connected with limit slides, and the limit slides are slidably matched on the tank road; the bottom position of the shaft is connected with a loading chamber, and the wellhead position of the shaft is connected with a discharge chamber.

[0014] The technical solution of the utility model has achieved the following beneficial technical effects:

[0015] 1. By setting a swingable bottom plate to cooperate with the friction plate, when the cage is over-wound and enters between the two friction plates, it can provide a friction braking buffer effect, and use the horizontal hydraulic cylinder to provide a supporting effect and provide sufficient clamping force; by setting a vertical hydraulic cylinder, when the horizontal hydraulic cylinder is pushed by the cage, the hydraulic oil will be pushed into the vertical hydraulic cylinder, so that it will stretch to support the top of the cage, and the vertical hydraulic cylinder and the horizontal hydraulic cylinder will cooperate with each other to clamp the cage to provide friction buffer and push the cage back to improve the buffer effect; by setting a manual pressure relief valve, the pressure in the horizontal hydraulic cylinder and the vertical hydraulic cylinder will be released, so that the cage can be quickly reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the cross-sectional structure of the shaft opening end of the utility model;

[0017] Figure 2 A schematic diagram of the cross-sectional structure of the bottom end of the vertical shaft of the utility model;

[0018] Figure 3 A schematic cross-sectional view of the utility model shaft;

[0019] Figure 4 A schematic diagram of the structure of the hydraulic overwinding protection mechanism of the utility model;

[0020] Figure 5 A schematic diagram of the top view of the hydraulic overwinding protection mechanism of the utility model;

[0021] Figure 6 A partial schematic diagram of the utility model showing that the vertical shaft is connected with the unloading chamber and the loading chamber.

[0022] The reference signs in the drawings are as follows: 1 - shaft wall; 2 - cage; 3 - steel cable; 4 - hoisting system; 401 - base; 402 - drum; 403 - first sheave; 404 - second sheave; 405 - bottom guide pulley; 406 - connecting seat; 5 - balance weight; 6 - guide rail; 7 - hydraulic overwind protection mechanism; 701 - hinge seat; 702 - bottom plate; 703 - friction plate; 704 - horizontal hydraulic cylinder; 705 - vertical hydraulic cylinder; 706 - hydraulic pipe; 707 - manual pressure relief valve; 708 - liquid storage tank; 709 - first retaining beam; 710 - second retaining beam; 8 - ladder shaft; 9 - support steel frame; 10 - limit chute; 11 - auxiliary slideway; 12 - wellhead support frame; 13 - bottom sump; 14 - drainage pump; 15 - water level sensor; 16 - unloading chamber; 17 - loading chamber. Detailed implementation manners

[0023] A mine shaft hoisting and transportation system in this embodiment is as Figure 1-2 shown, and includes a cage 2, a steel cable 3, a hoisting system 4, a balance weight 5 and a guide rail 6. The guide rail 6 is arranged in the shaft along the depth direction of the shaft. A support steel frame 9 is fixedly installed in the shaft wall 1 of the shaft. The guide rail 6 is fixedly connected to the shaft wall 1 of the shaft through the support steel frame 9. The cage 2 is arranged in the shaft and is slidably fitted on the guide rail 6. Limit chutes 10 are fixedly connected to both sides of the cage 2. The limit chutes 10 are slidably fitted on the guide rail 6. By providing the limit chutes 10 and the guide rail 6, the stability of the cage 2 during up and down operation can be ensured.

[0024] As Figure 2 shown, the balance weight 5 is arranged in the shaft and is located on one side of the cage 2. Auxiliary slideways 11 are arranged on both sides of the balance weight 5. The auxiliary slideways 11 are fixedly connected to the support steel frame 9. The balance weight 5 is slidably fitted on the auxiliary slideways 11.

[0025] As Figure 1 and Figure 2As shown, the hoisting system 4 is arranged in the hoisting room at the shaft mouth, one end of the steel cable 3 is fixedly connected to the cage 2, and the other end of the steel cable 3 is connected to the hoisting system 4 by transmission and then fixedly connected to the counterweight 5. The hoisting system 4 includes a drum 402, a first wheel 403 and a second wheel 404. The drum 402 is fixedly installed in the hoisting room at one end of the shaft mouth through a base 401. A shaft mouth support frame 12 is fixedly installed on the shaft mouth, and the first wheel 403 and the second wheel 404 are respectively installed on the shaft mouth support frame 12. The first wheel 403 is arranged just above the cage 2, the second sheave 404 is arranged just above the counterweight 5, the steel cable 3 fixed to the top of the cage 2 passes around the first sheave 403, the drum 402 and the second sheave 404 in sequence and is fixedly connected to the top of the counterweight 5, a connecting seat 406 is fixedly connected to the bottom of the shaft, a bottom guide wheel 405 is rotatably connected to the connecting seat 406, a steel cable 3 is also fixedly connected to the bottom of the cage 2, and the steel cable 3 connected to the bottom of the cage 2 passes around the bottom guide wheel 405 and is fixedly connected to the bottom of the counterweight 5.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a hydraulic overwinding protection mechanism 7 is fixedly installed at a position facing the cage 2 in the shaft opening, and a hydraulic overwinding protection mechanism 7 is also fixedly installed at a position facing the cage 2 in the shaft bottom, the hydraulic overwinding protection mechanism 7 comprises an articulated seat 701, a bottom plate 702 and a friction plate 703, the articulated seat 701 is fixedly connected to the shaft wall 1 through a supporting steel frame 9, one end of the bottom plate 702 is hinged on the articulated seat 701, the bottom plates 702 are arranged at positions on both sides of the cage 2, the friction plates 703 are fixedly installed on the side wall surface of the bottom plate 702 facing the cage 2, and the distance between the two opposite friction plates 703 gradually decreases from the hinged end to the free end of the bottom plate 702; the bottom plate 702 is away from the cage 2. A horizontal hydraulic cylinder 704 is provided on one side of the cage 2, and the end of the piston rod of the horizontal hydraulic cylinder 704 is against the side wall of the bottom plate 702, and the cylinder barrel of the horizontal hydraulic cylinder 704 is fixedly connected to the supporting steel frame 9; a vertical hydraulic cylinder 705 is provided at the end position of the movement direction of the cage 2, and the end of the piston rod of the vertical hydraulic cylinder 705 is facing the cage 2, and the cylinder barrel of the vertical hydraulic cylinder 705 is fixedly connected to the shaft wall 1 through the supporting steel frame 9, the liquid outlet of the horizontal hydraulic cylinder 704 is fluid-connected with the liquid inlet of the vertical hydraulic cylinder 705 through a hydraulic pipe 706, and a manual pressure relief valve 707 is fluid-connected on the liquid inlet of the vertical hydraulic cylinder 705, and the other end of the manual pressure relief valve 707 is connected to a liquid storage tank 708.

[0027] likeFigure 4 As shown, on the shaft head and at the shaft bottom: a first stop beam 709 and a second stop beam 710 are arranged in sequence along the moving direction of the cage 2. Both the first stop beam 709 and the first stop beam 709 are fixedly connected to the shaft wall 1 through a support steel frame 9. By arranging the first stop beam 709 and the second stop beam 710, the cage 2 can be further blocked to prevent overwinding.

[0028] As Figure 2 and Figure 3 shown, a ladder room 8 is arranged in the space on the other side of the cage 2 in the shaft. A manhole steel ladder is fixedly installed in the ladder room 8, and the manhole steel ladder is fixedly connected to the shaft wall 1 through a support steel frame 9; a bottom sump 13 is opened at the bottom of the shaft, a drainage pump 14 is installed in the bottom sump 13, and a water level sensor 15 is installed at the opening of the bottom sump 13; both the water level sensor 15 and the drainage pump 14 are connected to the ground control room. After the water level in the bottom sump 13 reaches the position of the water level sensor 15, the water level sensor 15 transmits a signal to the main computer in the control room, and the main computer controls the drainage pump 14 to perform drainage operations to avoid water accumulation at the bottom of the shaft.

[0029] As Figure 6 shown, a loading chamber 17 is communicated at the bottom position of the shaft, and a discharging chamber 16 is communicated at the shaft head position.

[0030] During actual operation, when the cage 2 is at the bottom of the shaft, ore is loaded into the cage 2 through the loading equipment in the loading chamber 17. After the loading is completed, the steel cable 3 is driven by the drum 402 to move the cage 2 upward, and at the same time, the balance weight 5 moves downward until the cage 2 reaches the position of the discharging chamber 16, and the ore is transported out through the discharging equipment in the discharging chamber 16 to complete a single lifting and transportation;

[0031] When the cage 2 undergoes overwinding, this embodiment takes the upward overwinding of the cage 2 as an example for illustration. As Figure 4As shown, the cage 2 first enters between the two friction plates 703, the friction plate 703 is supported by the bottom plate 702, and the bottom plate 702 is supported by the horizontal hydraulic cylinder 704. The spacing between the two friction plates 703 gradually decreases from bottom to top. After the cage 2 enters between the two friction plates 703, the two side walls of the cage 2 contact the friction plates 703, and buffering is performed under the action of friction. At the same time, under the clamping force of the friction plates 703, the buffering effect is further improved, and the friction plates 703 will expand outward, thereby squeezing the horizontal hydraulic cylinder 704, so that the internal hydraulic oil enters into the vertical hydraulic cylinder 705. In order to ensure sufficient supporting force of the horizontal hydraulic cylinder 704, a one-way pressure valve can be installed on the liquid outlet of the horizontal hydraulic cylinder 704 to control the horizontal pressure. The oil discharge pressure to the hydraulic cylinder 704, after the hydraulic oil in the horizontal hydraulic cylinder 704 enters into the vertical hydraulic cylinder 705, the vertical hydraulic cylinder 705 is extended to support the top of the cage 2. Under the push of the cage 2, the horizontal hydraulic cylinder 704 and the vertical hydraulic cylinder 705 cooperate with each other. After the vertical hydraulic cylinder 705 is pressurized, the force of the horizontal hydraulic cylinder 704 pushing the bottom plate 702 is increased, and the clamping force on the cage 2 is increased. After the horizontal hydraulic cylinder 704 is pressurized, the pushing force of the vertical hydraulic cylinder 705 on the cage 2 is increased. When the cage 2 stops and needs to be put into transportation again, the manual pressure relief valve 707 is opened to release the pressure of the hydraulic oil in the horizontal hydraulic cylinder 704 and the vertical hydraulic cylinder 705. The two hydraulic cylinders lose their driving force and the cage 2 can be reset.

[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A mine shaft hoisting and transportation system, characterized in that, It includes a cage (2), a steel cable (3), a hoisting system (4), a counterweight (5) and a guide rail (6). The guide rail (6) is arranged in the shaft along the depth direction of the shaft. The cage (2) is arranged in the shaft and slidably fitted on the guide rail (6). The counterweight (5) is arranged in the shaft and located on one side of the cage (2). The hoisting system (4) is arranged in the hoisting machine room at the shaft head. One end of the steel cable (3) is fixedly connected to the cage (2), and the other end of the steel cable (3) is drivingly connected to the hoisting system (4) and then fixedly connected to the counterweight (5). A hydraulic overwind protection mechanism (7) is fixedly installed at the position in the shaft head facing the cage (2), and a hydraulic overwind protection mechanism (7) is also fixedly installed at the position in the shaft bottom facing the cage (2).

2. The mine shaft hoisting and transportation system according to claim 1, wherein A support steel frame (9) is fixedly installed in the shaft wall (1) of the shaft. The guide rail (6) is fixedly connected to the shaft wall (1) of the shaft through the support steel frame (9). Auxiliary slideways (11) are arranged on both sides of the counterweight (5). The auxiliary slideways (11) are fixedly connected to the support steel frame (9), and the counterweight (5) is slidably fitted on the auxiliary slideways (11).

3. A mine shaft hoisting and transportation system according to claim 1, characterized in that, A ladder room (8) is arranged in the space on the other side of the cage (2) in the shaft. A pedestrian steel ladder is fixedly installed in the ladder room (8), and the pedestrian steel ladder is fixedly connected to the shaft wall (1) through the support steel frame (9).

4. A mine shaft hoisting and transportation system according to claim 1, characterized in that, The hoisting system (4) includes a drum (402), a first sheave (403) and a second sheave (404). The drum (402) is fixedly installed in the hoisting machine room at one end of the shaft head through a base (401). A wellhead support frame (12) is fixedly installed on the shaft head. The first sheave (403) and the second sheave (404) are respectively installed on the wellhead support frame (12). The first sheave (403) is arranged directly above the cage (2), and the second sheave (404) is arranged directly above the counterweight (5). The steel cable (3) fixed to the top of the cage (2) sequentially bypasses the first sheave (403), the drum (402) and the second sheave (404) and is fixedly connected to the top of the counterweight (5).

5. A mine shaft hoisting and transportation system according to claim 4, characterized in that, A connecting seat (406) is fixedly connected to the bottom of the shaft. A bottom guide wheel (405) is rotatably connected to the connecting seat (406). A steel cable (3) is also fixedly connected to the bottom of the cage (2). The steel cable (3) connected to the bottom of the cage (2) bypasses the bottom guide wheel (405) and is fixedly connected to the bottom of the counterweight (5).

6. A mine shaft hoisting and transportation system according to claim 1, characterized in that, A bottom sump (13) is opened at the bottom of the shaft. A drainage pump (14) is installed in the bottom sump (13), and a water level sensor (15) is installed at the opening of the bottom sump (13).

7. A mine shaft hoisting and transportation system according to claim 1, characterized in that, The hydraulic overwinding protection mechanism (7) comprises an articulated seat (701), a bottom plate (702) and a friction plate (703); the articulated seat (701) is fixedly connected to the shaft wall (1) via a supporting steel frame (9); one end of the bottom plate (702) is hinged on the articulated seat (701); the bottom plates (702) are arranged at positions on both sides of the cage (2); and the friction plate (703) is fixedly mounted on the bottom plate (702) and faces the bottom plate (702). On the side wall surface of the tank cage (2), the distance between the two opposite friction plates (703) gradually decreases from the hinged end to the free end of the bottom plate (702); a transverse hydraulic cylinder (704) is arranged on the side of the bottom plate (702) away from the tank cage (2), the end of the piston rod of the transverse hydraulic cylinder (704) abuts against the side wall surface of the bottom plate (702), and the cylinder barrel of the transverse hydraulic cylinder (704) is fixedly connected to the supporting steel frame (9).

8. A mine shaft hoisting and transportation system according to claim 7, characterized in that, A vertical hydraulic cylinder (705) is provided at the end position of the moving direction of the cage (2), the piston rod end of the vertical hydraulic cylinder (705) is directly opposite to the cage (2), the cylinder barrel of the vertical hydraulic cylinder (705) is fixedly connected to the shaft wall (1) through a supporting steel frame (9), the liquid outlet of the horizontal hydraulic cylinder (704) is fluid-conducted with the liquid inlet of the vertical hydraulic cylinder (705) through a hydraulic pipe (706), the liquid inlet of the vertical hydraulic cylinder (705) is fluid-conducted with a manual pressure relief valve (707), and the other end of the manual pressure relief valve (707) is connected to a liquid storage tank (708).

9. A mine shaft hoisting and transportation system according to claim 8, characterized in that, A first stop beam (709) and a second stop beam (710) are sequentially arranged at the shaft opening and the shaft bottom along the moving direction of the cage (2); the first stop beam (709) and the second stop beam (710) are both fixedly connected to the shaft wall (1) via a supporting steel frame (9).

10. A mine shaft hoisting and transportation system according to claim 1, characterized in that, The cage (2) is fixedly connected to limiting slide grooves (10) on both sides, and the limiting slide grooves (10) are slidably fitted on the tank channel (6); the bottom of the shaft is connected to a loading chamber (17), and the top of the shaft is connected to a discharge chamber (16).

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